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Where Windows Defender Stores Its Cache Files

If Windows Defender (now Microsoft Defender Antivirus) won't update definitions, hangs during sca...

Fix PowerShell Slow Performance After Update

After a Windows update, some users notice that PowerShell starts slowly or runs commands with a d...

Fix Command Prompt Not Recognizing Commands

You type a command in Command Prompt and get '...' is not recognized as an internal or exte...

How to Resolve Port Conflicts with Windows Defender Firewall
You're trying to run a local server or application, but it fails to start because the port is alr...

How to Enable Windows Update via Command Line Tools
If Windows Update is disabled or not working, you can enable it using command-line tools. This ar...

Fix Command Prompt Not Working After Windows Update
After a Windows update, you might click Command Prompt and nothing happens—or it opens and closes...


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